diff --git a/src/main/java/com/yn/bftl/thirdparty/common/util/DateTimeUtils.java b/src/main/java/com/yn/bftl/thirdparty/common/util/DateTimeUtils.java
index 760c2f1..4fd96c0 100644
--- a/src/main/java/com/yn/bftl/thirdparty/common/util/DateTimeUtils.java
+++ b/src/main/java/com/yn/bftl/thirdparty/common/util/DateTimeUtils.java
@@ -2,6 +2,7 @@
 
 import cn.hutool.core.convert.Convert;
 import cn.hutool.core.date.DateUtil;
+import cn.hutool.core.util.ObjectUtil;
 import org.joda.time.DateTime;
 
 import java.time.Instant;
@@ -35,11 +36,22 @@
     }
 
     public static String setDateTimeToRFC3339(String dateStr) {
-        return DateUtil.format(Convert.toLocalDateTime(dateStr) ,"yyyy-MM-dd'T'HH:mm:ssXXX");
+        if(ObjectUtil.isNotEmpty(dateStr)) {
+            return DateUtil.format(Convert.toLocalDateTime(dateStr) ,"yyyy-MM-dd'T'HH:mm:ssXXX");
+        }
+        else {
+            return null;
+        }
+
     }
 
     public static String getDateTimeToRFC3339(String dateStr ) {
-        return getDateTimeToRFC3339( dateStr,"yyyyMMddHHmmss");
+        if(ObjectUtil.isNotEmpty(dateStr)) {
+            return getDateTimeToRFC3339( dateStr,"yyyyMMddHHmmss");
+        }
+        else {
+            return null;
+        }
     }
 
     public static String getDateTimeToRFC3339(String dateStr, String pattern ) {